Hydrogen technologies are technologies that relate to the production and use of hydrogen as a part hydrogen economy. Hydrogen technologies are applicable for many uses.

Some hydrogen technologies are carbon neutral and could have a role in preventing climate change and a possible future hydrogen economy. Hydrogen is a chemical widely used in various applications including ammonia production, oil refining and energy. The most common methods for producing hydrogen on an industrial scale are: Steam reforming, oil reforming, coal gasification, water electrolysis.

Hydrogen is not a primary energy source, because it is not naturally occurring as a fuel. It is, however, widely regarded as an ideal energy storage medium, due to the ease with which electricity can convert water into hydrogen and oxygen through electrolysis and can be converted back to electrical power using a fuel cell or hydrogen turbine. There are a wide number of different types of fuel and electrolysis cells.

The potential environmental impact depends primarily on the methods used to generate hydrogen as a fuel.

Fuel cells

Hydrogen infrastructure

Hydrogen storage

Hydrogen vehicles

Historic hydrogen filled airships

Hydrogen powered cars

Hydrogen fueling nozzle

Audi:

BMW:

Chrysler:

Daimler:

Fiat:

Ford:

  • 2000 – Ford Focus FCV-Fuel cell. Note however that Ford Motor Company has dropped its plans to develop hydrogen cars, stating that "The next major step in Ford’s plan is to increase over time the volume of electrified vehicles".
  • 2006 – F-250 Super Chief a Tri-Flex engine concept pickup.

Forze Hydrogen-Electric Racing Team Delft

General Motors:

Honda:

Hyundai:

Lotus Engineering:

Kia:

Mazda:

  • 1991 – Mazda HR-X Hydrogen Wankel Rotary.
  • 1993 – Mazda HR-X2 Hydrogen Wankel Rotary.
  • 1993 – Mazda MX-5 Miata Hydrogen Wankel Rotary.
  • 1995 – Mazda Capella Cargo, first public street test of the hydrogen Wankel Rotary engine.
  • 1997 – Mazda Demio FC-EV Methanol-Reducing Fuel Cell
  • 2001 – Mazda Premacy FC-EV – First public street test of the Methanol-Reducing Fuel Cell vehicle in Japan
  • 2003 – Mazda RX-8 Hydrogen RE Hydrogen \ Gasoline hybrid Wankel Rotary.
  • 2007 – Mazda Premacy Hydrogen RE Hybrid
  • 2009 – Mazda 5 Hydrogen RE Hybrid

Mitsubishi:

Morgan:

Nissan:

Peugeot:

Renault:

  • Scenic ZEV H2 is a hydro-electric MPV co-developed by Nissan.

Riversimple:

  • 2009 – Riversimple Urban Car

Ronn Motor Company:

Toyota:

Volkswagen:

  • 2000 – VW Bora Hy-motion-Fuel cell
  • 2002 – VW Bora Hy-power-Fuel cell
  • 2004 – VW Touran Hy-motion-Fuel cell
  • 2007 – VW space up! blue

Hydrogen-powered planes

  • Hyfish
  • Smartfish
  • Tupolev Tu-155-hydrogen-powered version of Tu-154
  • Antares DLR-H2 -The first aircraft capable of performing a complete flight on fuel-cell power only

Possible future aircraft using precooled jet engines include Reaction Engines Skylon and the Reaction Engines A2.

Hydrogen powered rockets

The following rockets were/are partially or completely propelled by hydrogen fuel:

Related technologies

Environmental

Nuclear

Organic chemistry

Miscellaneous

See also